DE3720611A1 - Steel girder - Google Patents

Steel girder

Info

Publication number
DE3720611A1
DE3720611A1 DE19873720611 DE3720611A DE3720611A1 DE 3720611 A1 DE3720611 A1 DE 3720611A1 DE 19873720611 DE19873720611 DE 19873720611 DE 3720611 A DE3720611 A DE 3720611A DE 3720611 A1 DE3720611 A1 DE 3720611A1
Authority
DE
Germany
Prior art keywords
openings
girder
steel
webs
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19873720611
Other languages
German (de)
Inventor
John Collins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mabey Hire Co Ltd
Original Assignee
Mabey Hire Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mabey Hire Co Ltd filed Critical Mabey Hire Co Ltd
Priority to DE19873720611 priority Critical patent/DE3720611A1/en
Publication of DE3720611A1 publication Critical patent/DE3720611A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/02—Shores or struts; Chocks non-telescopic
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention relates to a steel girder, in particular for supporting shaped concrete parts, which comprises two longitudinal girder elements which are arranged back to back and parallel to each other and are connected to each other at their ends and, if appropriate, between their ends by transverse webs. Each girder element has a web, which is provided, in order to increase its strength in the longitudinal direction, with spaced-apart openings each enclosed by a flange. According to the invention, said openings have a peripheral flange with a channel-like profile in the radial direction, as a result of which the strength with respect to shearing forces is increased and the risk of the girder rupturing under load is reduced.

Description

Die Erfindung betrifft einen Stahlträger, insbe­ sondere zum Abstützen von Betonformteilen, bestehend aus zwei langgestreckten Stahl-Trägerelementen, welche Rücken an Rücken und parallel zueinander an­ geordnet sind und jeweils einen Steg aufweisen, in welchem in Längsrichtung im Abstand voneinander Öff­ nungen vorgesehen sind, welche von einem umlaufenden Randprofil umgeben sind. Speziell befaßt sich die Erfindung mit der Verbesserung von Stahlträgern, wie sie in den GB-PSen 15 51 154 und 21 45 145 beschrieben sind.The invention relates to a steel beam, in particular especially for supporting concrete parts, consisting from two elongated steel support elements, which back to back and parallel to each other are ordered and each have a web, in which in the longitudinal direction at a distance from each other are provided, which by a rotating Edge profile are surrounded. The deals specifically with Invention with the improvement of steel beams, such as they are described in GB-PSen 15 51 154 and 21 45 145 are.

Die bekannten Stahlträger umfassen zwei längliche Stahlelemente bzw. Trägerelemente, welche ihrerseits einen kanalförmigen Querschnitt haben können und Rücken an Rücken und parallel zueinander angeordnet sind. Dabei besitzt jedes Trägerelement einen Steg, welcher zur Gewichtsverringerung in Längsrichtung mit in regelmäßigen Abständen voneinander vorgesehenen Öffnungen versehen ist. Zum Erhöhen der Stabilität der Stegbereiche der Trägerelemente sind die Öffnunen dabei von umlaufenden Randprofilen in Form von Lippen umgeben, die nachstehend gelegentlich auch als Flansche bezeichnet werden. Die umlaufenden Randprofile bzw. Flansche der Öffnungen in den Stegen der Trägerele­ mente können dabei trichterförmig ausgebildet sein und bei den beiden Trägerelementen in entgegengesetzte Richtungen weisen.The known steel girders comprise two elongated ones Steel elements or support elements, which in turn can have a channel-shaped cross section and Arranged back to back and parallel to each other are. Each carrier element has a web, which to reduce weight in the longitudinal direction with provided at regular intervals from each other Openings are provided. To increase stability  the web areas of the support elements are the openings thereby from peripheral edge profiles in the form of lips surrounded, sometimes referred to below as flanges be designated. The peripheral edge profiles or Flanges of the openings in the webs of the carrier element elements can be funnel-shaped and in the two carrier elements in opposite Show directions.

Ausgehend vom Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen gattungsgemäßen Stahlträger dahingehend zu verbessern, daß sich eine verbesserte Tragfähigkeit und eine verbesserte Widerstandsfähigkeit gegen Scherkräfte ergeben, und zwar im Vergleich zu den bekannten Randprofilen, die im wesentlichen die Form eines 90°-Bogens haben.Based on the prior art, the invention is the Task based on a generic steel beam to improve in that an improved Load capacity and improved durability against shear forces, compared to the known edge profiles, which are essentially the shape of a 90 ° bend.

Diese Aufgabe wird bei einem Stahlträger der eingangs an­ gegebenen Art gemäß der Erfindung dadurch gelöst, daß das umlaufende Randprofil im Querschnitt in radialer Richtung kanalartig ausgebildet ist.This task begins with a steel beam given type according to the invention in that the circumferential edge profile in cross section in radial Direction is channel-like.

In Ausgestaltung der Erfindung hat es sich als vorteil­ haft erwiesen, wenn die Randprofile der Öffnungen in den Stegen der Trägerelemente bei dem einen Träger­ element in die eine Richtung und bei dem anderen Träger­ element in die entgegengesetzte Richtung weisen, wobei es besonders bevorzugt wird, wenn die Randprofile nach außen über die Außenseite der Stege vorstehen. In an embodiment of the invention, it has proven to be advantageous proven if the edge profiles of the openings in the webs of the carrier elements in the one carrier element in one direction and with the other carrier point the element in the opposite direction, where it is particularly preferred if the edge profiles follow protrude outside the outside of the webs.  

Durch die erfindungsgemäße Ausgestaltung wird die Be­ lastung der am höchsten belasteten Materialfasern der umlaufenden Randprofile auf einen größeren Bereich verteilt, so daß die Belastung bei normalen Belastungs­ bedingungen weniger schädlich ist.Due to the configuration of the invention, the Be load of the most heavily loaded material fibers of the circumferential edge profiles on a larger area distributed so that the load at normal load conditions is less harmful.

Weitere Einzelheiten und Vorteile der Erfindung werden nachstehend anhand von Zeichnungen noch näher erläutert. Es zeigen:Further details and advantages of the invention will be below with reference to drawings explained. Show it:

Fig. 1 eine Seitenansicht eines verbesserten Stahl­ trägers gemäß der Erfindung; Figure 1 is a side view of an improved steel beam according to the invention.

Fig. 2 einen Querschnitt durch den Stahlträger gemäß Fig. 1 längs der Linie X-X in dieser Figur; FIG. 2 shows a cross section through the steel beam according to FIG. 1 along the line XX in this figure;

Fig. 3 einen Querschnitt durch den Stahlträger gemäß Fig. 1 längs der Linie Y-Y in dieser Figur; Fig. 3 is a cross-sectional view of the steel beam of Figure 1 taken along the line YY in this figure.

Fig. 4 eine Stirnansicht des Stahlträgers gemäß Fig. 1-3; FIG. 4 shows an end view of the steel girder according to FIGS. 1-3;

Fig. 5a und 5bvergrößerte Detaildarstellungen von Randprofilen gemäß der Erfindung (Fig. 5a) und gemäß dem Stande der Technik (Fig. 5b) und Figures 5a and 5bvergrößerte detail illustrations. Of the invention (Fig. 5a) and according to the prior art (FIG. 5b) and of edge profiles according to

Fig. 6 eine schematische Darstellung zur Erläuterung der Funktion des verbesserten Randprofils bei einem erfindungsgemäßen Stahlträger. Fig. 6 is a schematic representation to explain the function of the improved edge profile in a steel beam according to the invention.

Im einzelnen zeigen Fig. 1-4 einen erfindungsgemäßen Stahlträger, welcher zwei Trägerelemente umfaßt, von denen jedes eine gebogene bzw. abgewinkelte Stahlplatte umfaßt, die einen flachen Steg 1 aufweist, welcher in Längsrichtung mit elliptischen Öffnungen 1 a versehen ist. In Fig. 1 sind drei derartige Öffnungen 1 a ge­ zeigt, wobei jedoch entsprechend der Gesamtlänge des Trägers auch eine größere Anzahl von Öffnungen vorge­ sehen sein kann. In jedem Fall kann dabei die Breite D H der Öffnung 1 a kleiner, größer oder gleich der Höhe D V der­ selben sein. Der Steg 1 ist seitlich verbreitert, so daß er in zwei Hohlprofile 2 eintritt und diese abstützt, wobei die Hohlprofile eine in gewissem Sinne kanalför­ mige Gestalt haben und mit dem Steg an Schweißstellen a und b verschweißt sind, welche längs der Stegkante bzw. auf der einen Stegfläche verlaufen. Der komplette Träger besteht, wie gesagt, aus zwei Trägerelementen, die in der vorstehend beschriebenen Weise ausgebildet sind und die parallel und Rücken an Rücken zueinander angeordnet und an ihren Enden über rechteckige, plattenförmige Querstege 3 miteinander verbunden sind. Je nach ihrer Länge können die Trägerelemente auch in ihrem zwischen den Enden liegenden Teil über ein oder mehrere Quer­ stege (nicht gezeigt) miteinander verbunden sein.Specifically, FIG. 1-4 a steel beam according to the invention, which comprises two carrier elements, each of which comprises a curved or angled steel plate, having a flat bridge 1, which is in longitudinal direction provided with elliptical openings 1a. In Fig. 1, three such openings 1 a ge are shown, but depending on the total length of the carrier, a larger number of openings can be seen easily. In any case, the width D H of the opening 1 a can be smaller, larger or equal to the height D V of the same. The web 1 is widened laterally so that it enters and supports two hollow profiles 2 , the hollow profiles having a channel-shaped shape in a certain sense and being welded to the web at welding points a and b , which are along the web edge or on the run a web surface. As already mentioned, the complete carrier consists of two carrier elements which are designed in the manner described above and which are arranged parallel and back to back to one another and are connected to one another at their ends by rectangular, plate-shaped crosspieces 3 . Depending on their length, the carrier elements can also be connected to one another in their part lying between the ends by means of one or more transverse webs (not shown).

Bisher wurden die Öffnungen 1 a in den Stegen längs ihres Umfangs mit Lippen oder Flanschen 1 b versehen, welche gemäß Fig. 5b ein einfaches bogenförmiges Profil hatten. So far, the openings 1 a in the webs have been provided along their circumference with lips or flanges 1 b , which according to FIG. 5 b had a simple arcuate profile.

Gemäß der Erfindung werden die umlaufenden Randbereiche der Öffnungen dagegen mit Lippen bzw. Flanschen 1 c ver­ sehen, die - im Querschnitt - ein U-förmiges Profil haben, wie dies in Fig. 3 und 5a gezeigt ist.According to the invention, the circumferential edge regions of the openings, on the other hand, are seen with lips or flanges 1 c , which - in cross section - have a U-shaped profile, as shown in FIGS. 3 and 5 a.

In Fig. 5a und 5b ist mit gestrichelten Linien jeweils die elastische Verformung der erfindungsgemäßen Flansche 1 c und der vorbekannten Flansche 1 b unter der Einwirkung der jeweils gleichen Kraft P 2 ge­ zeigt. In Fig. 5a ist dabei der seitliche Abstand zwischen den Angriffspunkten der Kraft P 2 mit e 1 be­ zeichnet und in Fig. 5b mit e 2.In Fig. 5a and 5b, with dashed lines, respectively, the elastic deformation of the flanges 1 of the invention and the prior art flanges c 1 b under the action of the respective same power P 2 shows ge. In Fig. 5a, the lateral distance between the points of application of the force P 2 with e 1 be and in Fig. 5b with e 2 .

Bei einem Vergleich von Fig. 5a und 5b erkennt man ohne weiteres, daß der Abstand e 2 bei der elastischen Verformung bei gleicher Kraft stärker zunimmt als der Abstand e 1. Dies führt zu einer verschlechterten Aufteilung der Last auf den die einzelnen Öffnungen 1 a umgebenden Flansch und zu einer verstärkten Ver­ formung bei Einwirken einer Last bzw. Kraft. Da die Faserbelastungen den Abständen e 1 bzw. e 2 proportional sind, ist es daher mit anderen Worten wünschenswert, eine konstruktive Form zu verwenden, die dazu führt, daß der Wert e 1 zu einem Minimum wird.When comparing FIGS. 5a and 5b, it is readily apparent that the distance e 2 increases more than the distance e 1 with the same force in the case of elastic deformation. This leads to a worsened distribution of the load on the flange surrounding the individual openings 1 a and to an increased deformation under the action of a load or force. In other words, since the fiber loads are proportional to the distances e 1 and e 2 , it is therefore desirable to use a constructive form which leads to the value e 1 becoming a minimum.

Fig. 6 zeigt schematisch die Verteilung der Kräfte im Bereich einer Stegöffnung 1 a eines erfindungsgemäßen Trägers, wenn in diesem ein Rohr gehaltert wird und eine Kraft in Richtung der Pfeile P ausübt. Aufgrund des im Vergleich zu dem Wert e 2 kleineren Wertes e 1 wirkt das kanalartige Flanschprofil stärker als eine Art Faßreifen, so daß die Komponenten R c der Reaktions­ kräfte R besser verteilt vom Umfang des Flanschbereichs aufgenommen werden können, wodurch die Belastungsspitzen am Umfang verringert werden. Fig. 6 shows schematically the distribution of the forces in the region of a web opening 1 a of a carrier according to the invention when a tube is held in this and exerts a force in the direction of the arrows P. Due to the smaller value e 1 compared to the value e 2, the channel-like flange profile acts more strongly than a kind of barrel tire, so that the components R c of the reaction forces R can be absorbed better distributed from the circumference of the flange region, as a result of which the load peaks on the circumference are reduced .

Während vorstehend ein Träger beschrieben wurde, bei dem die Stege der Trägerelemente elliptische Öff­ nungen haben, versteht es sich, daß die Öffnungen auch kreisförmig, im wesentlichen rechteckig oder mit einer anderen Form ausgebildet werden können, vorausgesetzt, daß die um die Öffnung umlaufenden Flansche das gewün­ schte kanalartige Profil haben.While a carrier has been described above, at which the webs of the support elements elliptical opening have openings, it goes without saying that the openings circular, essentially rectangular or with a other shape, provided that the flanges around the opening would like that would like to have channel-like profile.

Claims (4)

1. Stahlträger, insbesondere zum Abstützen von Beton­ formteilen, bestehend aus zwei langgestreckten Stahl-Trägerelementen, welche Rücken an Rücken und parallel zueinander angeordnet sind und jeweils einen Steg aufweisen, in welchem in Längsrichtung im Ab­ stand voneinander Öffnungen vorgesehen sind, welche von einem umlaufenden Randprofil umgeben sind, dadurch gekennzeichnet, daß das umlaufende Rand­ profil 1c im Querschnitt in radialer Richtung kanalartig ausgebildet ist.1. Steel girder, in particular for supporting molded concrete parts, consisting of two elongated steel girder elements, which are arranged back to back and parallel to each other and each have a web, in which stood in the longitudinal direction from each other openings are provided, which by a circumferential Edge profile are surrounded, characterized in that the peripheral edge profile 1c is channel-like in cross section in the radial direction. 2. Stahlträger nach Anspruch 1, dadurch gekennzeichnet, daß die Randprofile 1c der beiden Stege 1 in ent­ gegengesetzte Richtungen weisen.2. Steel beam according to claim 1, characterized in that the edge profiles 1c of the two webs 1 point in opposite directions ent ent. 3. Stahlträger nach Anspruch 2, dadurch gekennzeichnet, daß die Randprofile 1c der Stege 1 über die Außenseite der Stege 1 vorstehen.That the edge profiles 1c projecting 3. steel support according to claim 2, characterized in that the webs 1 on the outer side of the webs. 1 4. Stahlträger nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß das Randprofil im Querschnitt im wesentlichen U-förmig ausgebildet ist.4. Steel beam according to one of claims 1-3, characterized characterized in that the edge profile in cross section is essentially U-shaped.
DE19873720611 1987-06-23 1987-06-23 Steel girder Withdrawn DE3720611A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873720611 DE3720611A1 (en) 1987-06-23 1987-06-23 Steel girder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873720611 DE3720611A1 (en) 1987-06-23 1987-06-23 Steel girder

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DE3720611A1 true DE3720611A1 (en) 1989-01-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436277A1 (en) * 1990-01-05 1991-07-10 Wilian Holding Company Beam member for concrete forming system
DE10261274A1 (en) * 2002-12-27 2004-07-22 EISENMANN Maschinenbau KG (Komplementär: Eisenmann-Stiftung) Frame part for industrial system base frame has strengthening part aperture open to at least one side of strengthening part so cable can be fed in from that side into aperture in strengthening part
EP1740788A1 (en) * 2002-09-30 2007-01-10 Gcg Holdings Ltd. Steel stud with openings and edge formations and method for making such a steel stud

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436277A1 (en) * 1990-01-05 1991-07-10 Wilian Holding Company Beam member for concrete forming system
EP1740788A1 (en) * 2002-09-30 2007-01-10 Gcg Holdings Ltd. Steel stud with openings and edge formations and method for making such a steel stud
DE10261274A1 (en) * 2002-12-27 2004-07-22 EISENMANN Maschinenbau KG (Komplementär: Eisenmann-Stiftung) Frame part for industrial system base frame has strengthening part aperture open to at least one side of strengthening part so cable can be fed in from that side into aperture in strengthening part
DE10261274B4 (en) * 2002-12-27 2005-04-21 Eisenmann Maschinenbau Gmbh & Co. Kg Frame part for the basic frame of an industrial plant

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